This is just an odd question. Previously RDBMSs (MySQL, SQLite, IIRC) I've used have allowed row value constructors (optional feature F641 in SQL'03) on INSERT statements. That is: INSERT INTO mytable VALUES (0,'hello'),(1,'world'); Is essentially shorthand for: INSERT INTO mytable VALUES (0,'hello'); INSERT INTO mytable VALUES (1,'world'); Under PostgreSQL, though, the parser thinks the row value constructors are arrays. This isn't a problem, per se, except to make me realize that PostgreSQL is unlikely to adopt F641. Is that correct, or is this behavior expected to change? This is just a curiosity question. I expect that PostgreSQL would behave in a similar manner performance wise inside a transaction. It just struck me as odd when it didn't work. -- Brandon Aiken CS/IT Systems Engineer Confidentiality Notice This email, including attachments, may include confidential and/or proprietary information, and may be used only by the person or entity to which it is addressed. If the reader of this email is not the intended recipient or his/her authorized agent, the reader is hereby notified that any dissemination, distribution or copying of this email is prohibited. If you have received this email in error, please notify the sender by replying to this message and deleting this email immediately.